I don't think that he is shoving that often there with sets, which make FH, he rather would make a min-raise or something similar, to keep you in the pot. This shove is often times from somewhat aggressive players rather with a FD or something similar, therefore I might even Call it here, he could easily even have a lot worse Aces, with he is shoving. The 2 just made him less likely to have a set, only few combos of 7s.